US4068037A - Silicon carbide filaments and method - Google Patents
Silicon carbide filaments and method Download PDFInfo
- Publication number
- US4068037A US4068037A US05/646,029 US64602976A US4068037A US 4068037 A US4068037 A US 4068037A US 64602976 A US64602976 A US 64602976A US 4068037 A US4068037 A US 4068037A
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- Prior art keywords
- silicon carbide
- filament
- carbon
- surface layer
- strength
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 26
- 239000002344 surface layer Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 abstract description 13
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000000151 deposition Methods 0.000 abstract description 9
- 230000008021 deposition Effects 0.000 abstract description 9
- 238000005229 chemical vapour deposition Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 4
- 229910002804 graphite Inorganic materials 0.000 abstract description 3
- 239000010439 graphite Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 239000010703 silicon Substances 0.000 abstract description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 16
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 16
- 239000000203 mixture Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 8
- 229910052786 argon Inorganic materials 0.000 description 8
- 239000001294 propane Substances 0.000 description 8
- 229910000077 silane Inorganic materials 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 150000004756 silanes Chemical class 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- PMPVIKIVABFJJI-UHFFFAOYSA-N Cyclobutane Chemical compound C1CCC1 PMPVIKIVABFJJI-UHFFFAOYSA-N 0.000 description 1
- 101100386054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CYS3 gene Proteins 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KTQYJQFGNYHXMB-UHFFFAOYSA-N dichloro(methyl)silicon Chemical compound C[Si](Cl)Cl KTQYJQFGNYHXMB-UHFFFAOYSA-N 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005048 methyldichlorosilane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 101150035983 str1 gene Proteins 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
- C04B35/571—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide obtained from Si-containing polymer precursors or organosilicon monomers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4584—Coating or impregnating of particulate or fibrous ceramic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/32—Carbides
- C23C16/325—Silicon carbide
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
- D01F11/12—Chemical after-treatment of artificial filaments or the like during manufacture of carbon with inorganic substances ; Intercalation
- D01F11/126—Carbides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
- Y10T428/292—In coating or impregnation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
Definitions
- Composite plastic and metal matrix materials reinforced with high-modulus, high-strength filaments such as boron and silicon carbide are finding increased popularity in structural applications.
- these types of composites are useful where high strength and stiffness with accompanying low weight is desired.
- the classical silicon carbide filament contains a refractory core, generally tungsten.
- the core is overcoated with silicon carbide.
- the overcoating is accomplished by means of a hydrogen reduction chemical vapor deposition process wherein gases containing sources of silicon and carbon are decomposed and silicon carbide coats the core.
- the thickness of the coating is directly related to the deposition time.
- the most widely-used cores are tungsten.
- Cores of carbonaceous nature, such as graphite and carbon monofilament are being developed as carbonaceous cores in combination with silicon carbide coatings have exhibited greater strength and stiffness than similar coatings on tungsten cores. Accordingly, the trend has been to improve the quality and manufacturing techniques for silicon carbide on carbon filaments.
- a length of silicon carbide filament is bent around the surface of a circular cylinder or disc.
- the stress at the outer surface of a filament is inversely proportional to the bending radius formed by the cylinder.
- the maximum surface strength is determined by the smallest diameter loop the filament can withstand without rupturing.
- Standard, or non-treated, 5.6 mil silicon carbide filament on a carbon core can be bent to a minimum diameter of about 9/16th of an inch. This computes to a maximum surface strength of about 650Ksi.
- the pull tests, such standard silicon carbide filaments have a tensile strength of about 350Ksi.
- a buffer layer of oriented graphite between the core and silicon carbide coating had no beneficial effect.
- Silicon carbide filament has been shown to be sensitive to surface abrasion which lowers its tensile strength. In order to improve this surface tensile strength and lessen the sensitivity to surface abrasion, a surface layer of carbon rich silicon carbide is applied to the silicon carbide coating during the deposition process. A surface treated 5.6 mil silicon carbide filament exhibited surface tensile strength, in the bend test, to values in the range of 1,400 to 1,600Ksi. In pull tests, these filaments still exhibited strength of about 350Ksi.
- Another object of the invention is to provide a method for economically and reliably making improved silicon carbide filament.
- a silicon carbide filament containing a carbon core overcoated with a coating of silicon carbide with an inner surface layer of carbon rich silicon carbide.
- the coating may also contain an outer surface layer of carbon rich silicon carbide.
- silicon carbide is particularly sensitive to the presence of non-stoichiometric silicon carbide or impurities.
- I. T. Kendall Journal of Chemical Physics, Vol. 21, pg. 821 (1953). Since both Kendall and K. Arnt & E. Hausmanne in Zeits Anorg Chem., Vol. 215, pg. 66 (1933) have found no evidence of non-stoichiometric silicon carbide, it is hypothesized that the excess carbon appears in the silicon carbide as an impurity.
- the properties of silicon carbide are particularly sensitive to the presence of impurities such as carbon.
- FIG. 1 is a schematic representation of a reactor for making silicon carbide filament
- FIG. 2 is a cross-sectional representation of a silicon carbide filament embodying the principles of the present invention.
- FIG. 1 shows a schematic diagram 10 of a reactor for making silicon carbide filament.
- the reactor 10 comprises a generally closed tubular cylinder 11 containing a pair of oppositely disposed closed ends 12 and 14.
- a central aperture containing mercury contacts 16 and 18 are defined in each of the ends 12 and 14.
- the mercury contacts are coupled through terminals a--a to a source of electrical power not otherwise shown.
- the refractory or carbon core 15 is obtained from a supply reel 20.
- the core passes into the cylinder 11 through the mercury contacts 16 and out of the cylinder through the mercury contact 18 to a take-up reel 22.
- a number of ports through which gas is fed to the cylinder 11 or exhausted from cylinder 11 are provided. These will be discussed in detail hereinafter.
- the carbon core 15 is raised to a deposition temperature by means of electrical resistance heating in a conventional way.
- a mixture of hydrogen and silanes are fed into the tubular cylinder 11.
- a chemical vapor deposition process takes place, and silicon carbide is deposited on the core.
- the thickness of the silicon carbide deposited coating is a function of the deposition temperature and the time it takes for the filament to pass through the tubular cylinder 11.
- Deposition temperatures in the range of 1,200°-1,500° C are used.
- the reactive gases comprise a blend of silanes in hydrogen.
- Preferred is a feedstock blend of dimethyldichlorosilane and methyldichlorosilane.
- the proportions in the blend vary.
- silicon carbide can be deposited from either silane above. Additionally, it is economically advantageous to recycle the products of the reaction that are exhausted by blending with the orginal feedstock.
- the invention is directed to a treatment applied to SiC coating made by chemical vapor deposition means.
- the coating is modified.
- the inventive concept is to construct an inner surface layer 30 of carbon rich silicon carbide at the interface of the carbon core 15 and the silicon carbide coating 32.
- silicon carbide on carbon filament with consistent pull strengths of 600-800Ksi and bend strengths of 1,400-1,600Ksi are made at economical production rates.
- Silicon carbide fibers having different diameters were produced. Optimum results were achieved when the diameter of the carbon rich region was one-half of the overall diameter.
- a silicon carbide coating which was uniformly carbon rich was very weak and generally unsatisfactory.
- the outer surface layer treatment was very thin and certainly less than 0.1 mil
- the inner surface layer treatment at its optimum measured 0.65 mil in thickness for a 5.6 mil filament and was useful in thicknesses of about 0.35-1.5 mils, depending on the overall diameter of the filament.
- the entire cross-section of the silicon carbide coating is carbon rich, the filament is very weak.
- the thickness of the inner surface layer is 30-60% of the thickness of the silicon carbide coating.
- An outer surface layer 34 was produced for the purpose of reducing sensitivity to surface abrasion. This factor does not knowingly appear pertinent at the inner surface of silicon carbide coating.
- the inner surface layer is constructed by combining with the silane and hydrogen feedstock a blend of argon and a hydrocarbon, the latter preferably being propane at the top of the reactor through port 24.
- the carbon rich silicon carbide outer surface layer 34 is produced differently.
- the mixture is diluted by additional hydrogen and silane and, at times, nitrogen and air through port 26.
- the diluted mixture is exhausted through port 28.
- the deposition temperature in the region between ports 24 and 26 is higher than normally used below port 26 and is in the range of 1,400°-1,500° C for propane. This high temperature may be maintained in a number of ways. This is the primary purpose of the argon. Localized r-f heating may also be used.
- the temperature is lowered to between 1,300° and 1,400° C below the port 26 and may decrease to about 1,200° C just above port 28.
- the outer surface layer 34 is produced by introducing argon and propane through port 29.
- the temperature at the lower end of the cylinder 11 between ports 28 and 29 is maintained in the range of 1,300°-1,400° C. Higher temperatures destroy the strength of the filament. Lower temperatures are ineffective.
- Hydrocarbons are the best sources of carbon to enrich the silicon carbide. Propane and butane were very effective. While methane did not work at the bottom of the reactor because of the low temperature, it may be effective at the top. Isobutane and cyclobutane are also recommended.
- the carbon core is prepared in a conventional way and fed to the reactor 10 as indicated in FIG. 1.
- silane blend, hydrogen, argon and propane are fed to the reactor in quantities to deposit on the core 15 a carbon rich silicon carbide layer. Some nitrogen and air is also added.
- additional silane blend and hydrogen are added to dilute the mixture of gases in contact with the core 15 below the port 26.
- the core 15 temperature is high and in the range of 1,400°-1,500° C. Normal deposition temperatures, in the range of 1,200°-1,350° C are maintained below port 26.
- the gases are exhausted at port 28.
- the filament may be surface treated by adding propane and argon through port 29 with the deposition temperature in the range 1,300°-1,400° C.
- the argon is added primarily to raise the temperature of the core. In all probability, it may be eliminated if supplemental r-f heating is used.
- the process parameters can be varies. Departures from the ratios expressed above may be compensated for by varying one or more other parameters.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Textile Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Fibers (AREA)
- Chemical Vapour Deposition (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/646,029 US4068037A (en) | 1976-01-02 | 1976-01-02 | Silicon carbide filaments and method |
SE7613456A SE416800B (sv) | 1976-01-02 | 1976-12-01 | Hoghallfast kiselkarbidtrad med hog elasticitetsmodul samt sett att framstella densamma |
CA267,276A CA1094890A (en) | 1976-01-02 | 1976-12-07 | Silicon carbide filaments and method |
DE19762658735 DE2658735A1 (de) | 1976-01-02 | 1976-12-24 | Siliziumkarbidfasern und deren herstellung |
JP51155211A JPS605682B2 (ja) | 1976-01-02 | 1976-12-24 | 炭化けい素フイラメント及び方法 |
FR7639556A FR2337214A1 (fr) | 1976-01-02 | 1976-12-30 | Filaments au carbure de silicium et leur preparation |
IT31013/76A IT1067968B (it) | 1976-01-02 | 1976-12-30 | Filamenti di carburo di silicio e metodo per la loro fabbricazione |
GB54406/76A GB1560110A (en) | 1976-01-02 | 1976-12-31 | Silicon carbide coated filaments and ribbons |
US05/762,649 US4127659A (en) | 1976-01-02 | 1977-01-26 | Silicon carbide filaments and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/646,029 US4068037A (en) | 1976-01-02 | 1976-01-02 | Silicon carbide filaments and method |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/762,649 Division US4127659A (en) | 1976-01-02 | 1977-01-26 | Silicon carbide filaments and method |
Publications (1)
Publication Number | Publication Date |
---|---|
US4068037A true US4068037A (en) | 1978-01-10 |
Family
ID=24591447
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/646,029 Expired - Lifetime US4068037A (en) | 1976-01-02 | 1976-01-02 | Silicon carbide filaments and method |
US05/762,649 Expired - Lifetime US4127659A (en) | 1976-01-02 | 1977-01-26 | Silicon carbide filaments and method |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/762,649 Expired - Lifetime US4127659A (en) | 1976-01-02 | 1977-01-26 | Silicon carbide filaments and method |
Country Status (8)
Country | Link |
---|---|
US (2) | US4068037A (es) |
JP (1) | JPS605682B2 (es) |
CA (1) | CA1094890A (es) |
DE (1) | DE2658735A1 (es) |
FR (1) | FR2337214A1 (es) |
GB (1) | GB1560110A (es) |
IT (1) | IT1067968B (es) |
SE (1) | SE416800B (es) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2487865A1 (fr) * | 1980-07-30 | 1982-02-05 | Avco Corp | Traitement de surface pour element en carbone |
US4315968A (en) * | 1980-02-06 | 1982-02-16 | Avco Corporation | Silicon coated silicon carbide filaments and method |
DE3130117A1 (de) * | 1980-07-30 | 1982-06-09 | Avco Corp., 06830 Greenwich, Conn. | Oberflaechenbehandlung von siliciumkarbid |
US4358473A (en) * | 1981-05-22 | 1982-11-09 | Avco Corporation | Process control system |
US4373006A (en) * | 1979-08-09 | 1983-02-08 | United Technologies Corporation | Silicon carbide coated carbon fibers and composites |
US4405685A (en) * | 1980-11-13 | 1983-09-20 | Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry | Carbon fibers with duplex metal carbide coating and methods for manufacture thereof |
US4415609A (en) * | 1980-07-30 | 1983-11-15 | Avco Corporation | Method of applying a carbon-rich surface layer to a silicon carbide filament |
US4481257A (en) * | 1979-11-26 | 1984-11-06 | Avco Corporation | Boron coated silicon carbide filaments |
US4623228A (en) * | 1984-10-25 | 1986-11-18 | United Technologies Corporation | Composite mirror substrate |
US4628002A (en) * | 1985-05-28 | 1986-12-09 | Avco Corporation | Silicon carbide monofilament for transverse composite properties |
US4828588A (en) * | 1988-04-01 | 1989-05-09 | University Of Cincinnati | Process for preparation of heterogeneous polysiloxane membrane and membrane produced |
US4871587A (en) * | 1982-06-22 | 1989-10-03 | Harry Levin | Process for coating an object with silicon carbide |
US4898778A (en) * | 1988-11-28 | 1990-02-06 | Avco Corporation | Silicon carbide monofilaments for improved composite properties and method |
US4942011A (en) * | 1988-05-03 | 1990-07-17 | E. I. Du Pont De Nemours And Company | Process for preparing silicon carbide fibers |
EP0396332A1 (en) * | 1989-05-04 | 1990-11-07 | The British Petroleum Company p.l.c. | Process for depositing a ceramic coating on a filament |
US5045398A (en) * | 1982-06-22 | 1991-09-03 | Harry Levin | Silicon carbide product |
US5139871A (en) * | 1988-01-13 | 1992-08-18 | The United States Of America As Represented By The Secretary Of The Navy | Thermochemically treated oligomeric and/or polymeric derived silicon carbide fibers |
EP0518589A1 (en) * | 1991-06-12 | 1992-12-16 | General Electric Company | Silicon carbide composite with metal boride coated fiber reinforcement |
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US5221353A (en) * | 1989-05-04 | 1993-06-22 | The British Petroleum Company | Apparatus for depositing a ceramic coating on a filament |
US5238741A (en) * | 1989-10-19 | 1993-08-24 | United Kingdom Atomic Energy Authority | Silicon carbide filaments bearing a carbon layer and a titanium carbide or titanium boride layer |
US5262235A (en) * | 1991-10-28 | 1993-11-16 | General Electric Company | Coated ceramic fiber system |
US5322711A (en) * | 1989-07-21 | 1994-06-21 | Minnesota Mining And Manufacturing Company | Continuous method of covering inorganic fibrous material with particulates |
US5364660A (en) * | 1989-07-21 | 1994-11-15 | Minnesota Mining And Manufacturing Company | Continuous atmospheric pressure CVD coating of fibers |
US5405654A (en) * | 1989-07-21 | 1995-04-11 | Minnesota Mining And Manufacturing Company | Self-cleaning chemical vapor deposition apparatus and method |
US5407614A (en) * | 1989-11-17 | 1995-04-18 | Petoca Ltd. | Process of making pitch-based carbon fibers |
US5571561A (en) * | 1992-10-27 | 1996-11-05 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Coated filaments |
EP1457472A1 (de) * | 2003-03-11 | 2004-09-15 | ARC Seibersdorf research GmbH | Verbundwerkstoff und Verfahren zu dessen Herstellung |
US20070116939A1 (en) * | 2001-11-23 | 2007-05-24 | Sgl Carbon Ag | Fiber-reinforced composite for protective armor, and method for producing the fiber-reinforced composition and protective armor |
EP0967190B2 (de) † | 1998-06-27 | 2010-01-20 | Daimler AG | Verfahren zur Herstellung von beschichteten Kurzfasern |
US20100055412A1 (en) * | 2008-09-03 | 2010-03-04 | Evergreen Solar, Inc. | String With Refractory Metal Core For String Ribbon Crystal Growth |
CN111072396A (zh) * | 2020-01-07 | 2020-04-28 | 山东理工大学 | 一种碳化硅膜连续碳纤维筒的制备方法 |
CN111099900A (zh) * | 2020-01-07 | 2020-05-05 | 山东理工大学 | 一种碳化硅膜连续碳纤维束的制备方法 |
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US4275095A (en) * | 1979-07-31 | 1981-06-23 | Warren Consultants, Inc. | Composite article and method of making same |
GB2165266B (en) * | 1982-10-12 | 1987-09-23 | Nat Res Dev | Infra red transparent optical components |
EP0106638A1 (en) * | 1982-10-12 | 1984-04-25 | National Research Development Corporation | Method and apparatus for growing material in a glow discharge |
EP0106637B1 (en) * | 1982-10-12 | 1988-02-17 | National Research Development Corporation | Infra red transparent optical components |
JPS6052620A (ja) * | 1983-08-24 | 1985-03-25 | Nippon Ester Co Ltd | 炭化ケイ素繊維の製造方法 |
DE3337949C1 (de) * | 1983-10-19 | 1985-04-18 | Hutschenreuther Ag, 8672 Selb | Verfahren zum Herstellen von SiC-Fasern und Fasergebilden |
DE3625690A1 (de) * | 1986-07-30 | 1988-02-04 | Wacker Chemie Gmbh | Verfahren zur herstellung von sic-enthaltender keramikfaser |
GB8923588D0 (en) * | 1989-10-19 | 1989-12-06 | Atomic Energy Authority Uk | Coated filaments for composites |
US7083771B2 (en) * | 2002-07-10 | 2006-08-01 | Advanced Composite Materials Corporation | Process for producing silicon carbide fibers essentially devoid of whiskers |
US20040009112A1 (en) | 2002-07-10 | 2004-01-15 | Advanced Composite Materials Corporation | Silicon carbide fibers essentially devoid of whiskers and method for preparation thereof |
US20070235450A1 (en) * | 2006-03-30 | 2007-10-11 | Advanced Composite Materials Corporation | Composite materials and devices comprising single crystal silicon carbide heated by electromagnetic radiation |
GB2462843B (en) * | 2008-08-22 | 2013-03-20 | Tisics Ltd | Coated filaments and their manufacture |
GB2462846B (en) * | 2008-08-22 | 2013-03-13 | Tisics Ltd | Coated filaments and their manufacture |
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- 1976-01-02 US US05/646,029 patent/US4068037A/en not_active Expired - Lifetime
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- 1976-12-07 CA CA267,276A patent/CA1094890A/en not_active Expired
- 1976-12-24 JP JP51155211A patent/JPS605682B2/ja not_active Expired
- 1976-12-24 DE DE19762658735 patent/DE2658735A1/de active Granted
- 1976-12-30 IT IT31013/76A patent/IT1067968B/it active
- 1976-12-30 FR FR7639556A patent/FR2337214A1/fr active Granted
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Cited By (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373006A (en) * | 1979-08-09 | 1983-02-08 | United Technologies Corporation | Silicon carbide coated carbon fibers and composites |
US4481257A (en) * | 1979-11-26 | 1984-11-06 | Avco Corporation | Boron coated silicon carbide filaments |
US4315968A (en) * | 1980-02-06 | 1982-02-16 | Avco Corporation | Silicon coated silicon carbide filaments and method |
JPS57118082A (en) * | 1980-07-30 | 1982-07-22 | Avco Corp | Surface treatment for carbon |
JPS57111289A (en) * | 1980-07-30 | 1982-07-10 | Avco Corp | Surface treatment for silicon carbide |
US4340636A (en) * | 1980-07-30 | 1982-07-20 | Avco Corporation | Coated stoichiometric silicon carbide |
JPH0225878B2 (es) * | 1980-07-30 | 1990-06-06 | Avco Corp | |
DE3130117A1 (de) * | 1980-07-30 | 1982-06-09 | Avco Corp., 06830 Greenwich, Conn. | Oberflaechenbehandlung von siliciumkarbid |
US4415609A (en) * | 1980-07-30 | 1983-11-15 | Avco Corporation | Method of applying a carbon-rich surface layer to a silicon carbide filament |
DE3130116A1 (de) * | 1980-07-30 | 1982-05-19 | Avco Corp., 06830 Greenwich, Conn. | Oberflaechenbehandlung von kohlenstoff |
FR2487865A1 (fr) * | 1980-07-30 | 1982-02-05 | Avco Corp | Traitement de surface pour element en carbone |
JPH0260638B2 (es) * | 1980-07-30 | 1990-12-17 | Avco Corp | |
US4702960A (en) * | 1980-07-30 | 1987-10-27 | Avco Corporation | Surface treatment for carbon and product |
US4405685A (en) * | 1980-11-13 | 1983-09-20 | Agency Of Industrial Science & Technology, Ministry Of International Trade & Industry | Carbon fibers with duplex metal carbide coating and methods for manufacture thereof |
US4358473A (en) * | 1981-05-22 | 1982-11-09 | Avco Corporation | Process control system |
US5045398A (en) * | 1982-06-22 | 1991-09-03 | Harry Levin | Silicon carbide product |
US4871587A (en) * | 1982-06-22 | 1989-10-03 | Harry Levin | Process for coating an object with silicon carbide |
US4623228A (en) * | 1984-10-25 | 1986-11-18 | United Technologies Corporation | Composite mirror substrate |
US4628002A (en) * | 1985-05-28 | 1986-12-09 | Avco Corporation | Silicon carbide monofilament for transverse composite properties |
US5139871A (en) * | 1988-01-13 | 1992-08-18 | The United States Of America As Represented By The Secretary Of The Navy | Thermochemically treated oligomeric and/or polymeric derived silicon carbide fibers |
US4828588A (en) * | 1988-04-01 | 1989-05-09 | University Of Cincinnati | Process for preparation of heterogeneous polysiloxane membrane and membrane produced |
US4942011A (en) * | 1988-05-03 | 1990-07-17 | E. I. Du Pont De Nemours And Company | Process for preparing silicon carbide fibers |
GB2225342B (en) * | 1988-11-28 | 1993-04-07 | Avco Corp | Silicon carbide monofilaments for improved composite properties and method |
US4898778A (en) * | 1988-11-28 | 1990-02-06 | Avco Corporation | Silicon carbide monofilaments for improved composite properties and method |
US5156883A (en) * | 1989-05-04 | 1992-10-20 | The British Petroleum Company P.L.C. | Process for depositing a ceramic coating on a filament |
US5221353A (en) * | 1989-05-04 | 1993-06-22 | The British Petroleum Company | Apparatus for depositing a ceramic coating on a filament |
EP0396332A1 (en) * | 1989-05-04 | 1990-11-07 | The British Petroleum Company p.l.c. | Process for depositing a ceramic coating on a filament |
US5405654A (en) * | 1989-07-21 | 1995-04-11 | Minnesota Mining And Manufacturing Company | Self-cleaning chemical vapor deposition apparatus and method |
US5364660A (en) * | 1989-07-21 | 1994-11-15 | Minnesota Mining And Manufacturing Company | Continuous atmospheric pressure CVD coating of fibers |
US5547512A (en) * | 1989-07-21 | 1996-08-20 | Minnesota Mining And Manufacturing Company | Continuous atomspheric pressure CVD coating of fibers |
US5322711A (en) * | 1989-07-21 | 1994-06-21 | Minnesota Mining And Manufacturing Company | Continuous method of covering inorganic fibrous material with particulates |
US5238741A (en) * | 1989-10-19 | 1993-08-24 | United Kingdom Atomic Energy Authority | Silicon carbide filaments bearing a carbon layer and a titanium carbide or titanium boride layer |
US5407614A (en) * | 1989-11-17 | 1995-04-18 | Petoca Ltd. | Process of making pitch-based carbon fibers |
US5316851A (en) * | 1991-06-12 | 1994-05-31 | General Electric Company | Silicon carbide composite with metal boride coated fiber reinforcement |
EP0518589A1 (en) * | 1991-06-12 | 1992-12-16 | General Electric Company | Silicon carbide composite with metal boride coated fiber reinforcement |
EP0519643A1 (en) * | 1991-06-17 | 1992-12-23 | General Electric Company | Silicon carbide composite with metal carbide coated fiber reinforcement |
US5262235A (en) * | 1991-10-28 | 1993-11-16 | General Electric Company | Coated ceramic fiber system |
US5571561A (en) * | 1992-10-27 | 1996-11-05 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Coated filaments |
EP0967190B2 (de) † | 1998-06-27 | 2010-01-20 | Daimler AG | Verfahren zur Herstellung von beschichteten Kurzfasern |
US20070116939A1 (en) * | 2001-11-23 | 2007-05-24 | Sgl Carbon Ag | Fiber-reinforced composite for protective armor, and method for producing the fiber-reinforced composition and protective armor |
US7238414B2 (en) * | 2001-11-23 | 2007-07-03 | Sgl Carbon Ag | Fiber-reinforced composite for protective armor, and method for producing the fiber-reinforced composition and protective armor |
EP1457472A1 (de) * | 2003-03-11 | 2004-09-15 | ARC Seibersdorf research GmbH | Verbundwerkstoff und Verfahren zu dessen Herstellung |
US20100055412A1 (en) * | 2008-09-03 | 2010-03-04 | Evergreen Solar, Inc. | String With Refractory Metal Core For String Ribbon Crystal Growth |
CN111072396A (zh) * | 2020-01-07 | 2020-04-28 | 山东理工大学 | 一种碳化硅膜连续碳纤维筒的制备方法 |
CN111099900A (zh) * | 2020-01-07 | 2020-05-05 | 山东理工大学 | 一种碳化硅膜连续碳纤维束的制备方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2337214B1 (es) | 1983-01-14 |
DE2658735A1 (de) | 1977-07-14 |
US4127659A (en) | 1978-11-28 |
IT1067968B (it) | 1985-03-21 |
JPS605682B2 (ja) | 1985-02-13 |
SE416800B (sv) | 1981-02-09 |
SE7613456L (sv) | 1977-07-03 |
GB1560110A (en) | 1980-01-30 |
DE2658735C2 (es) | 1988-10-27 |
JPS5285524A (en) | 1977-07-15 |
FR2337214A1 (fr) | 1977-07-29 |
CA1094890A (en) | 1981-02-03 |
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